Home / 28,689.84-39,629.39-22,057.02

Finding the Fourth Proportional to 28,689.84, 39,629.39 and 22,057.02

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Solution

The fourth proportional to 28,689.84, 39,629.39 and 22,057.02 is: 30,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.84 : 39,629.39 = 22,057.02 : x
  2. Step 2: Convert to fraction form
    28,689.84/39,629.39 = 22,057.02/x
  3. Step 3: Cross multiply
    28,689.84x = 39,629.39 × 22,057.02
  4. Step 4: Simplify right side
    28,689.84x = 874,106,137.53
  5. Step 5: Solve for x
    x = 874,106,137.53/28,689.84
  6. Step 6: Final answer
    x = 30,467.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.